What is the answer to 3x+4y=12
1 answer:
3x + 4y = 12
To find x subtract 4y from both sides
3x = 12 - 4y
Then divide all terms by 3
3x/3 = 12/3 - 4y /3
So, x = 4 - 4/3y
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The photo is blurry but the answer is 23
we have M is durectly porpotional to r^2
so M=(k)r^2
and when r=2, m=14
so 14=(k)(2)^2
k=14/4 =7/2
so when r=12
m= (7/2)(12)^2 =(7/2)(144) = 504
Circumference = 2

r
Solve for r.
2

r = 37.7
Divide both sides by 2.

r = 18.85
Divide both sides by

.
r = 6
The radius is 6 cm.